1. the progress of science to come from Europe and America, mainly to understand these things must have a knowledge of English is very good, because most of the textbook recipes written in English.
1. The progress of applied science in Europe and America is the most To understand this requires knowledge of the English language as well, because most texts written in English.
1. The progress on science from Europe and America is mainly to understand these things requires knowledge of English as well as many treatises written in English.